Home / 20,956,538.70-31,434,808.05-8,839,683.90

Finding the Fourth Proportional to 20,956,538.70, 31,434,808.05 and 8,839,683.90

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Solution

The fourth proportional to 20,956,538.70, 31,434,808.05 and 8,839,683.90 is: 13,259,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,538.70 : 31,434,808.05 = 8,839,683.90 : x
  2. Step 2: Convert to fraction form
    20,956,538.70/31,434,808.05 = 8,839,683.90/x
  3. Step 3: Cross multiply
    20,956,538.70x = 31,434,808.05 × 8,839,683.90
  4. Step 4: Simplify right side
    20,956,538.70x = 277,873,766,619,175.41
  5. Step 5: Solve for x
    x = 277,873,766,619,175.41/20,956,538.70
  6. Step 6: Final answer
    x = 13,259,525.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.